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Investment Securities - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Securities Financing Transactions Disclosures [Abstract]
Available-for-sale securities	$ 404,745		$ 260,477
AFS accrued interest	$ 1,800
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable
Held-to-maturity securities	$ 364,029		382,447
HTM accrued interest	$ 1,600
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable
Available-for-sale securities pledged as collateral	$ 490,700		440,000
Letter of credit outstanding, amount	158,600		$ 156,000
Net gains	$ 0	$ 0

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Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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